683239-81-8

Upstream product

• 683239-80-7 (3aS,4S,5aS,6S,8aR,8bS)-2,2,6-Trimethyl-4-((E)-propenyl)-hexahydro-1,3,5,7-tetraoxa-as-indacen-8-one 
• 5707-04-0 Phenylselenyl chloride 
• 20432-44-4 (2E,4E/Z)-2,4-hexadienal 
• 105881-47-8 (4S,5S)-4,5-dihydro-4-hydroxy-5-methyl-2(3H)-furanone 
• 683239-67-0 (2S,3R,4S,4aS,7S,7aS)-hexahydro-4-hydroxy-3-iodo-7-methyl-2-(1E)-1-propenyl-5H-furo[3,4-b]pyran-5-one 
• 683239-78-3 (2S,3R,4S,4aS,7S,7aS)-hexahydro-3,4-dihydroxy-7-methyl-2-(1E)-1-propenyl-5H-furo[3,4-b]pyran-5-one 
• 683239-65-8 2,5-dideoxy-2-[(1R,2E,4E)-1-hydroxy-2,4-hexadienyl]-L-xylonic acid γ-lactone 

Relevant academic research and scientific papers

Syntheses of (-)-TAN-2483A, (-)-massarilactone B, and the fusidilactone B ring system. Revision of the structures of and syntheses of (±)-Waol A (FD-211) and (±)-Waol B (FD-212)

The structure of waol A has been revised from 1 to 6, the vinylogue of TAN-2483A (5). Aldol reaction of hydroxybutanolides 13b,c with 2,4-hexadienal affords 12b,c, which are subjected to iodoetherification with bis(sym-collidine)IPF6 to provide